A potential method of treating Alzheimer's disease using ultrasound is being hailed as a "breakthrough."
A team of researchers at the University of Queensland's Queensland Brain Institute Clem Jones Centre for Ageing Dementia Research have successfully restored memory function in mice using the drug-free, non-invasive technology to break down the neurotoxic amyloid plaques that cause memory loss and loss of cognitive function.
A solid tumour is the perfect example of a complex adaptive system at work. It is an ecosystem with competitive and cooperative networks of cells at play. This is one of the reasons why cancer is so difficult to treat.
Ever since exoplanets were first discovered in the 1990s, astronomers have dreamed of finding an Earth-like planet amongst the stars. Better detection techniques have allowed us to find smaller and smaller exoplanets. But when we spot a planet beyond our Solar System, does “Earth-sized” really mean “Earth-like?” A new study presented at this week’s American Astronomical Society meeting shows that the smallest exoplanets are much more likely to be similar to Earth than we thought.
It’s been two days since AirAsia Flight 8501 disappeared over the Java Sea, and still there’s no sign of the missing plane or the 162 people aboard. It is, of course, all but impossible to know at this point just what went wrong, but we do know the flight’s planned route to Singapore would have taken it through clusters of thunderstorms, and we know the crew moved west of their course to avoid clouds.
People hold beliefs for a complex variety of reasons. Some of these beliefs may be based on facts, but others may be based on ideas that can never be proved or disproven. For example, people who are against the death penalty might base their belief partly on evidence that the death penalty does not reduce violent crime (which could later be shown to be false), and partly on the notion that the death penalty violates a fundamental human right to life. The latter is an unfalsifiable belief, because it can’t be changed purely by facts.